From c9136695d1de740c5a2e7e80c685e32d81740c77 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Tue, 13 Oct 2020 09:11:35 +0100 Subject: [PATCH] iommu/hyper-v: Implement select() method on remapping irqdomain Preparatory for removing irq_remapping_get_irq_domain() Signed-off-by: David Woodhouse Signed-off-by: Thomas Gleixner --- drivers/iommu/hyperv-iommu.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/iommu/hyperv-iommu.c b/drivers/iommu/hyperv-iommu.c index 37dd485a5640b..78a264ad94057 100644 --- a/drivers/iommu/hyperv-iommu.c +++ b/drivers/iommu/hyperv-iommu.c @@ -101,7 +101,16 @@ static void hyperv_irq_remapping_free(struct irq_domain *domain, irq_domain_free_irqs_common(domain, virq, nr_irqs); } +static int hyperv_irq_remapping_select(struct irq_domain *d, + struct irq_fwspec *fwspec, + enum irq_domain_bus_token bus_token) +{ + /* Claim only the first (and only) I/OAPIC */ + return x86_fwspec_is_ioapic(fwspec) && fwspec->param[0] == 0; +} + static const struct irq_domain_ops hyperv_ir_domain_ops = { + .select = hyperv_irq_remapping_select, .alloc = hyperv_irq_remapping_alloc, .free = hyperv_irq_remapping_free, }; -- 2.49.0